4D Mw = 1 2. The growth rate of a water droplet with diameter d at ambient vapour pressure e is given by: dd (e – Cod(d)

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4d Mw 1 2 The Growth Rate Of A Water Droplet With Diameter D At Ambient Vapour Pressure E Is Given By Dd E Cod D 1 (111.77 KiB) Viewed 34 times

4D Mw = 1 2. The growth rate of a water droplet with diameter d at ambient vapour pressure e is given by: dd (e – Cod(d)) dt dpJRT where D 2.42 · 10-5 m2 s is the vapour diffusion coefficient and cod(d) the equilibrium vapour pressure over a curved surface of pure liquid water. a) A CCN with 100 nm diameter is activated and growing into a droplet with 200 nm in diameter. At that point, the ambient saturation ratio has dropped to s 1.015. The temperature is T = 7 °C. What is the growth rate of the droplet now? b) After some more time the droplet has grown to 20 um in diameter. The ambient saturation ratio dropped to S = 1.001 and the temperature is still T = 7 °C. What is the growth rate now? -